Here is an introduction to what types of diesel engines are available.

1. Classified by working cycle: four-stroke diesel engine and two-stroke diesel engine.

2. According to whether it is supercharged or not: supercharged diesel engine and non-supercharged diesel engine.

3. Classified by crankshaft speed: high-speed, medium-speed and low-speed diesel engines.

4. Classified by structural characteristics:

(1) Cylindrical piston type: the piston plays a guiding role, and the cylinder wall bears the side thrust.

(2) Crosshead type: The piston has no guiding effect, and the cylinder liner has no side thrust effect. The guiding effect is borne by the crosshead slider and the side thrust is borne by the guide plate. A horizontal partition is added to the lower part of the cylinder to separate the cylinder from the crankcase to prevent the dirty oil, coke or gas in the cylinder from leaking into the crankcase and polluting the lubricating oil. The reliability of the crosshead diesel engine is higher than that of the cylindrical piston type.

5. Arranged by cylinder:

(1) In-line: the number of cylinders is less than 12 cylinders

(2) Type V: The included angles of the cylinder are 90°, 60°, and 45°.

6. Points by steering:

Right-handed engine: A diesel engine that rotates clockwise when looking at the free end from the flywheel end (power output end).
Left-handed engine: A diesel engine that rotates counterclockwise when looking at the free end from the flywheel end (power output end).

7. According to reversibility points: There are irreversible and reversible diesel engines.